Conservative Force and Non Conservative Forces The work done by the gravitational force does not depend on whether an object falls vertically or slides down a sloping incline. All that matters is the change in the object’s elevation. On the other hand, the energy loss due to friction on that incline depends on the distance Read more about Conservative Force and Non Conservative Forces[…]
Conditions of Concurrency of Three Lines Three lines are said to be concurrent if they pass through a common point, i.e., they meet at a point. Thus, if three lines are concurrent the point of intersection of two lies on the third line.Let a₁x + b₁y + c₁ = 0 … 1 a₂x + b₂y Read more about Conditions of Concurrency of Three Lines[…]
Mean Free Path The molecule of a gas move with high speeds at a given temperature but even then a molecule of the gas takes a very long time to go from one point to another point in the container of the gas. This is due to the fact that a gas molecule suffers a Read more about Mean Free Path[…]
Centroid, Orthocenter, Circumcenter & Incenter of a Triangle Centroid: The centroid of a triangle is the point of intersection of medians. It divides medians in 2 : 1 ratio. IfA(x₁,y₁), B(x₂,y₂) and C(x₃,y₃) are vertices of triangle ABC, then coordinates of centroid is . Incenter: Point of intersection of angular bisectors The incenter is the center of Read more about Centroid, Orthocenter, Circumcenter & Incenter of a Triangle[…]
Concave and Convex Mirrors Let us know about convex mirrors and concave mirrors. Mirror is a surface which reflects a clear image. Images can be of two types: Real image and Virtual image. An image which can be formed on the screen is known as real image and the one which cannot be formed on Read more about Concave and Convex Mirrors[…]
Harmonic Progression Insertion of harmonic means between two given numbers: Let a, b be two given numbers. If n numbers H₁, H₂, … Hn are inserted between a and b such that the sequence H₁, H₂, … H n ,b is an HP Then, H₁, H₂, … Hn are called n harmonic means between a Read more about Harmonic Progression[…]
Weightlessness We often hear that an astronaut experiences weightlessness in space. What does this mean? Let us perform a simple experiment to demonstrate weightlessness. Suspend a stone from a spring balance, the pointer of the spring balance shows the weight of the stone. Allow the spring balance along with the stone to fall freely. The Read more about Weightlessness[…]
Aligarh Muslim University Engineering Entrance Exam (AMUEEE)-2018 Notification Released What is AMUEEE-2018? Aligarh Muslim University Engineering Entrance Exam (AMUEEE)-2018 is an entrance exam conducted by Aligarh Muslim University. It was originally established by Sir Syed Ahmad Khan as Mohammedan Anglo-Oriental College in 1875. The Muhammadan Anglo-Oriental College became Aligarh Muslim University in 1920. The main Read more about Aligarh Muslim University Engineering Entrance Exam (AMUEEE)-2018 Notification Released[…]
ICFAI Tech School Admission Test (ITSAT) 2018 Notification Released What is ITSAT? Icfai Tech School Admission Test (ITSAT) is an All India Admission Test conducted by The ICFAI Foundation for Higher Education (IFHE), Hyderabad for students seeking admission into the B.Tech. Program of IFHE Hyderabad, The ICFAI University, Dehradun, The ICFAI University, Jaipur, The ICFAI Read more about ICFAI Tech School Admission Test (ITSAT) 2018 Notification Released[…]
Infinite Geometric Series Sum of n terms of a G.P: The sum of n terms of a G.P. with first term a and common ratio r is given by or . Proof: Let Sn denote the sum of n terms of the G.P. with first term a and common ratio r Then, Sn = a Read more about Infinite Geometric Series[…]